Headrest



Jan. 17, 1933. l z 1,894,444

HEADREST Fil ed Oct. 16, 1930 Patented Jan. 17, 1933 WILLIAM JOHN nnmrz or m, NE YORK' I nEAnRnsr Application filed October 16,1930, Serial m. 189,156. i

Y My invention relates to a head rest and I declare the following to be a full, clear, concise and exact description thereof sufficient to enable anyone skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawing in which like characters refer to like parts throughout. a i

The ob 'ect of the invention is to provide a head rest for dental or like chairs that will present a soft surface for the occiput of the person to rest against. Furthermore, the invention is'designed for sanitation and to this end, has a removable pad'that is covered by a removable paper napkin. The object will be apparent by referring to the drawing, in

which,

Fig. 1 is a perspective View of the head rest.

Fig. 2 is a detailed view showing a perspective of a cup-shaped member employed.

Fig. 3 is a section taken on the line 3-3 of Fig. 1.

Fig. 4 is a detailed view showing a perspective of a hollow rubber cup-shaped pad employed.

Fig. 5 is a detailed view somewhat enlarged and in fragment of a clip employed and im-- mediate parts.

Fig. 6 is a detailed view somewhat enlarged showing a perspective of the clip and immediate parts. 7

Referring more particularly to the drawing the device embodies a metallic cup shaped casing 1 that is secured in any suitable manner to a removable head rest rod, not shown, of a dental chair. A ring 2 is mounted relative to cup 1 by a metallic spring clip 3. Spring clip 3 is doubled over upon itself with one portion or leaf 4 projected through a narrow slot formed in the lower edge 5 of lateral wall 6 of cup 1. The upper end of portion 1 has parallel extending ears 7, 7. Ears 7, 7 45 are bent at right angles and projected through apertures 10, 10 formed in wall 6, whereby to secure clip 3 in place on wall 6. The portion or leaf 12 of clip 3 is spaced from the contiguous surface of wall 6. Its upper end 14 is held yielding against the contiguous surface of wall 6, whereby to clasp of wall 6 of cup 1, whereby or pinch'the edge'of'p'aper cover 8 therebee tween. It is bent downward at 15, terminating in two parts 16, 16 that are bent into cylinders to form loose bearings for the free 1 1 upper ends 17, 17 of; U shaped lever 20.: The

lower'portion 21 of U, shaped lever 20 is bent at 22, 22. I By pressing the lower portion 21 towards cup-1, the upper end 14 of lea'f12, Wlll be forced outward, whereby to release the edge ofzpaper cover 8. o l Paper cover 8 is d'sposed over the upper, surface of hollow rubber pad 25. Rubber pad 25 is made in the form of acup that isadapted to rest in a remov'able manner in cup 1; To this end it is provided with a shoulder at 26 that rests upon the upper edgef27 of'wall 6'formedon cup1. The u er sur-' facejof rubber pad 25 is convex to provide a dome 28. 'Dome 28 with the aircushion thereheneath will form a yielding surface 0" against which the head of the person occupying 'the chair canlbe" rested comfortably. gross ribs 30, 30 are made integral with the inner surface of dome 28, whereby to aid in supporting'said dome 28.

. Rubber pad 25 can be readily removed" from cup 1 when it is desired to clean said pad 25. .A sheet ofpaper 8is disposed over dome 28after each occupant leaves the chair, not shown. Inorder to substitute a new sheet 8 for the old one, the operator simply, presses on. the lower free end of U shaped lever 20, to press the upper clamping end 14:

of clip 3 away from the contiguous surface to release that portion of paper cover 8 that was pinched between the contiguous surfaces of wall 6 and clip 3. Immediately a new sheet of paper 8 has been laid on dome 28 with its edge hanging down adjacent wall 6, lever 20, if still in 9 dotted line position illustrated in Fig. 1 is released, whereby to allow the contiguous surfaces of wall 6 and clip 3 to clamp or pinch the adjacent portion of paper cover 8 M therebetween. Ring 2 is then moved from 9 dotted to full line position shown in Fig. 1 to hold the edge of paper cover 8 against the wall 6 of cup 1 and thereby secure paper cover 8 in position.

The assembly of the hollow rubber cup shaped pad 25 within metal cup 1 forms an air chamber creating a semi-pneumatic pad that presents a pillow efiect for the head. Furthermore, by moving ring 2 to follow line position shown in Fig. 1 it will draw paper cover 8 tightly in all directions where by to cause said paper to effect a smooth and perfect fittingsur face upon pad 25. I Having thus described my invention, what I claim as new and desire to secure by Letters Patent is as follows:; I v 1. In a head rest, interfitting members forming an air cushion, a paper cover dis posed upon one of said members, a cl1p attached to one of sald members, a ring secured to said clip, whereby to hold said paper cover to said interfitting members, said clip adapted to hold said paper cover to said interfit ting members and means for moving said clip, whereby torelease said paper cover.

, 2. In a head rest, a cup-shaped member holding a rubber pad a paper cover disposed uponsaid rubber pad, a spring clip fastened to said cup-shaped member, a ringsecuredto 25;.

said spring clip and a lever connected therewith for actuatingsaid'spring clip, whereby to release said paper cover.

3,, In a head'rest'for an operating chair, a hollow cushion member of, elastic material for, supporting the head, a retaining device.

having a cup-shaped chamber for receiving said hollow cushion member and held there in'by-e friction fit and readily removable with respect to. said cup for sanitary purposes and a removable cover on said head rest.

4; In ahead rest for an operating chair, av hollow cushion memberof elastic material for supporting the head, a retaining device having a cup-shaped chamber for receiving said hollow cushion member and held therein by friction fit and readily removable with respect to said cup for sanitary purposes and said hollow cushion member being reinforced V by internal ridges formed integral therewith anda removable cover onsaid head rest.

In testimonywhereof I have afiixed my signature. e WILLIAM J. HEINTZ. 

